I have irregular cycles, when to do the test?

Updated on 12 November 2026

If your cycle is irregular, you don’t need to wait for a specific day: book your appointment whenever suits you.

  • Your hormonal results are always interpreted within your overall context, and our medical team takes cycle irregularity into account when reviewing them.

  • If you can, note roughly where you are in your cycle (or that it’s irregular) so the interpretation is as accurate as possible.

  • If your cycle is regular (every 21 to 35 days) and your Complete panel includes sex-hormone markers, do your blood test between day 3 and day 8 of your cycle, counting day 1 as the first day of your period. This window does not apply to the follow-up panel.

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